Density measuring device for fluids - uses radioactive radiation and consists of test section between radiator and receiver

摘要

The walls of the test section are made of foil which bulges inwards and the foil is supported at its edges by a plate with a round hole into which the bulged areas of the foil are placed. The edges of the foil which lie on the plate are sealed by corresponding rings; There are inlet and outlet channels for the fluid and possibly several venting channels for the fluid drilled in the thickness of the plate. The thin section between the two foils is filled with the fluid under test, so that the shape of the test thickness of the fluid is like a biconcave lens.